Loosing Light Through Plexiglass

[DJ ArKaDaRkA]

ive bought a 11w arc pod for my 5gal so i can have some basic live plants in there but my lid is plexiglass with a slight blue tint to it

how much light will be able to get through or would it be best to leave it open?

 

[Colin_T]

you will lose some light through the cover but it won't be too much. If you remove the cover then there is a possibility water can get into the light and make it short out.
Leaving the light on for longer will help make up for a little less light getting into the water. Lights can stay on for up to 16hours per day.